Rewatching this video, I found a mistake.
At [6:20] I didn’t choose “Custom” and that’s why the resulting post format was a different order than I expected, seen later in the video at [26:54].
Next time, I’m going to try the first option: “Title and link”
In my opinion, it looks great and the featured image shows up perfect. I’m glad the ActivityPub plugin uses the full URL and not a shortened redirect, which would be bad for SEO.
2023 Update: I moved to another Fediverse instance and the example is gone now.
PS: I forgot to try the hashtag feature. I’ll try that next time.